IFC building model
Schema: "IFC4"
Description: "ViewDefinition [CoordinationView_V2.0]"
File name: "nah-nasu-cave-real-listing.ifc"
Time stamp: "2026-05-09T00:00:00"
Author: "BIM.HOUSE"
Organization: "Enabler Inc."
Preprocessor: "IFC4 Add2 — Real Listing AI Design"
Originating system: "BIM.HOUSE"
Application: "BIM.HOUSE" version "1.0" identifier "bim.house"

People and organizations
  Person (none given)
  Owner history of Person (none given) | application "BIM.HOUSE" version "1.0" identifier "bim.house" | change ADDED | created 1714000000 (2024-04-24T23:06:40Z)

Units
  LENGTHUNIT: MILLI METRE
  AREAUNIT: SQUARE_METRE
  VOLUMEUNIT: CUBIC_METRE
  PLANEANGLEUNIT: RADIAN

Spatial structure
IFCPROJECT "NOT A HOTEL NASU / CAVE 洞窟の家(参考モデル・AI推定)" | long name "BIM.HOUSE" | phase "3-story RC造 + 台地から立ち上がる洞窟的ヴォリューム + 洞窟風呂/サウナ/インフィニティプール/天然温泉 + 空と牧場へ抜ける開口(設計 SUPPOSE DESIGN OFFICE 谷尻誠・吉田愛。意匠は公開情報ベース・構造詳細は AI 推定), 481.76sqm proposed for 1300sqm lot at 栃木県大田原市佐良土(那須高原 Nasu Farm Village の台地 — 公開情報ベース)"
  IFCSITE "栃木県大田原市佐良土(那須高原 Nasu Farm Village の台地 — 公開情報ベース)" | object type "Real listing site, 1300sqm" | elevation above sea level 0.
    IFCBUILDING "NOT A HOTEL NASU / CAVE 洞窟の家(参考モデル・AI推定) (Proposed)" | object type "3F RC造 + 台地から立ち上がる洞窟的ヴォリューム + 洞窟風呂/サウナ/インフィニティプール/天然温泉 + 空と牧場へ抜ける開口(設計 SUPPOSE DESIGN OFFICE 谷尻誠・吉田愛。意匠は公開情報ベース・構造詳細は AI 推定) 481.76sqm" | reference height above sea level 0. | terrain above sea level 0.
      IFCBUILDINGSTOREY "GF" | elevation 0.
        contains 44 elements
          1 x IFCSITE | names: "敷地 30.0×43.0m / 約1,300㎡ (那須 牧場の台地)" | material: "Reinforced Concrete" | property sets: Pset_BuildingElementCommon, BaseQuantities
          4 x IFCSLAB | FLOOR | names: "RC 基礎(台地に根を張る)", "2F 床スラブ", "3F 床スラブ (セットバック)" (+1 more) | material: "Reinforced Concrete"; "Generic" | property sets: Pset_SlabCommon, BaseQuantities
          11 x IFCWALL | names: "1F 北壁 (打放しコンクリート・厚い洞窟壁)", "1F 西壁 (打放し・厚い洞窟壁)", "1F 東壁 (打放し・厚い洞窟壁)" (+8 more) | material: "Reinforced Concrete"; "Generic" | property sets: Pset_WallCommon, BaseQuantities
          6 x IFCWINDOW | names: "1F 南面 抉った大開口 (空と牧場へ / carved opening)", "1F 南面 抉った窓 西", "1F 東面 地窓" (+3 more) | material: "Generic" | property sets: Pset_WindowCommon, BaseQuantities
          8 x IFCCOLUMN | COLUMN | names: "RC 柱 □300", "RC 中央柱 □300", "RC 柱 □300 (2F)" (+1 more) | material: "Reinforced Concrete" | property sets: Pset_ColumnCommon, BaseQuantities
          8 x IFCBUILDINGELEMENTPROXY | names: "洞窟風呂 (cavernous bath / 抉った浴室)", "インフィニティプール (台地の縁に張り出す)", "天然温泉 露天風呂 (hot spring)" (+5 more) | material: "Reinforced Concrete"; "Generic"; "Tree Trunk" | property sets: Pset_BuildingElementCommon, BaseQuantities
          3 x IFCSPACE | INTERNAL | names: "洞窟リビング吹抜 (3層を貫く大空洞 / cavernous void)", "ロフト (洞窟最上の籠り / loft)", "雨水タンク (外構)" | material: "Generic" | property sets: Pset_SpaceCommon, BaseQuantities
          2 x IFCROOF | FLAT_ROOF | names: "RC 屋根 (台地に低く沈む)", "太陽光パネル PV (屋上)" | material: "Reinforced Concrete"; "Generic" | property sets: Pset_RoofCommon, BaseQuantities
          1 x IFCRAILING | HANDRAIL | names: "テラス ガラス手摺" | material: "Generic" | property sets: Pset_RailingCommon, BaseQuantities

Property sets
  Pset_BuildingElementCommon | properties | on 1 object (1 IFCSITE)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "敷地 30.0×43.0m / 約1,300㎡ (那須 牧場の台地)" (IFCLABEL)
  Pset_BuildingElementCommon | properties | on 1 object (1 IFCBUILDINGELEMENTPROXY)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "洞窟風呂 (cavernous bath / 抉った浴室)" (IFCLABEL)
  Pset_BuildingElementCommon | properties | on 1 object (1 IFCBUILDINGELEMENTPROXY)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "インフィニティプール (台地の縁に張り出す)" (IFCLABEL)
  Pset_BuildingElementCommon | properties | on 1 object (1 IFCBUILDINGELEMENTPROXY)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "天然温泉 露天風呂 (hot spring)" (IFCLABEL)
  Pset_BuildingElementCommon | properties | on 1 object (1 IFCBUILDINGELEMENTPROXY)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "サウナ" (IFCLABEL)
  Pset_BuildingElementCommon | properties | on 1 object (1 IFCBUILDINGELEMENTPROXY)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "白樺 #1 幹" (IFCLABEL)
  Pset_BuildingElementCommon | properties | on 1 object (1 IFCBUILDINGELEMENTPROXY)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "白樺 #1 樹冠" (IFCLABEL)
  Pset_BuildingElementCommon | properties | on 1 object (1 IFCBUILDINGELEMENTPROXY)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "白樺 #2 幹" (IFCLABEL)
  Pset_BuildingElementCommon: 1 more content on 1 objects not shown
  BaseQuantities | quantities | on 5 objects (5 IFCCOLUMN)
    Length = 2.9000 [MILLI METRE]
    NetVolume = 0.2610 [CUBIC_METRE]
  BaseQuantities | quantities | on 3 objects (3 IFCCOLUMN)
    Length = 2.8000 [MILLI METRE]
    NetVolume = 0.2520 [CUBIC_METRE]
  BaseQuantities | quantities | on 2 objects (2 IFCWALL)
    Height = 2.9000 [MILLI METRE]
    Length = 0.4000 [MILLI METRE]
    NetSideArea = 1.1600 [SQUARE_METRE]
    NetVolume = 11.6000 [CUBIC_METRE]
  BaseQuantities | quantities | on 2 objects (2 IFCWALL)
    Height = 2.8000 [MILLI METRE]
    Length = 0.4000 [MILLI METRE]
    NetSideArea = 1.1200 [SQUARE_METRE]
    NetVolume = 10.0800 [CUBIC_METRE]
  BaseQuantities | quantities | on 2 objects (2 IFCWALL)
    Height = 2.7000 [MILLI METRE]
    Length = 0.4000 [MILLI METRE]
    NetSideArea = 1.0800 [SQUARE_METRE]
    NetVolume = 7.5600 [CUBIC_METRE]
  BaseQuantities | quantities | on 1 object (1 IFCSITE)
    NetVolume = 258.0000 [CUBIC_METRE]
  BaseQuantities | quantities | on 1 object (1 IFCSLAB)
    NetArea = 160.0000 [SQUARE_METRE]
    NetVolume = 96.0000 [CUBIC_METRE]
  BaseQuantities | quantities | on 1 object (1 IFCWALL)
    Height = 2.9000 [MILLI METRE]
    Length = 16.0000 [MILLI METRE]
    NetSideArea = 46.4000 [SQUARE_METRE]
    NetVolume = 18.5600 [CUBIC_METRE]
  BaseQuantities: 23 more contents on 23 objects not shown
  Pset_SlabCommon | properties | on 1 object (1 IFCSLAB)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "RC 基礎(台地に根を張る)" (IFCLABEL)
  Pset_SlabCommon | properties | on 1 object (1 IFCSLAB)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "2F 床スラブ" (IFCLABEL)
  Pset_SlabCommon | properties | on 1 object (1 IFCSLAB)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "3F 床スラブ (セットバック)" (IFCLABEL)
  Pset_SlabCommon | properties | on 1 object (1 IFCSLAB)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "テラス デッキ (牧場へ)" (IFCLABEL)
  Pset_WallCommon | properties | on 1 object (1 IFCWALL)
    FireRating = "120" (IFCLABEL)
    IsExternal = TRUE (IFCBOOLEAN)
    LoadBearing = TRUE (IFCBOOLEAN)
    Reference = "1F 北壁 (打放しコンクリート・厚い洞窟壁)" (IFCLABEL)
  Pset_WallCommon | properties | on 1 object (1 IFCWALL)
    FireRating = "120" (IFCLABEL)
    IsExternal = TRUE (IFCBOOLEAN)
    LoadBearing = TRUE (IFCBOOLEAN)
    Reference = "1F 西壁 (打放し・厚い洞窟壁)" (IFCLABEL)
  Pset_WallCommon | properties | on 1 object (1 IFCWALL)
    FireRating = "120" (IFCLABEL)
    IsExternal = TRUE (IFCBOOLEAN)
    LoadBearing = TRUE (IFCBOOLEAN)
    Reference = "1F 東壁 (打放し・厚い洞窟壁)" (IFCLABEL)
  Pset_WallCommon | properties | on 1 object (1 IFCWALL)
    FireRating = "30" (IFCLABEL)
    IsExternal = TRUE (IFCBOOLEAN)
    LoadBearing = FALSE (IFCBOOLEAN)
    Reference = "1F 間仕切り (寝室境)" (IFCLABEL)
  Pset_WallCommon | properties | on 1 object (1 IFCWALL)
    FireRating = "120" (IFCLABEL)
    IsExternal = TRUE (IFCBOOLEAN)
    LoadBearing = TRUE (IFCBOOLEAN)
    Reference = "2F 北壁 (打放し)" (IFCLABEL)
  Pset_WallCommon | properties | on 1 object (1 IFCWALL)
    FireRating = "120" (IFCLABEL)
    IsExternal = TRUE (IFCBOOLEAN)
    LoadBearing = TRUE (IFCBOOLEAN)
    Reference = "2F 西壁 (打放し)" (IFCLABEL)
  Pset_WallCommon | properties | on 1 object (1 IFCWALL)
    FireRating = "120" (IFCLABEL)
    IsExternal = TRUE (IFCBOOLEAN)
    LoadBearing = TRUE (IFCBOOLEAN)
    Reference = "2F 東壁 (打放し)" (IFCLABEL)
  Pset_WallCommon | properties | on 1 object (1 IFCWALL)
    FireRating = "30" (IFCLABEL)
    IsExternal = TRUE (IFCBOOLEAN)
    LoadBearing = FALSE (IFCBOOLEAN)
    Reference = "2F 間仕切り" (IFCLABEL)
  Pset_WallCommon: 3 more contents on 3 objects not shown
  Pset_WindowCommon | properties | on 1 object (1 IFCWINDOW)
    GlazingAreaFraction = 0.85 (IFCREAL)
    IsExternal = TRUE (IFCBOOLEAN)
    Reference = "1F 南面 抉った大開口 (空と牧場へ / carved opening)" (IFCLABEL)
    ThermalTransmittance = 2.1 (IFCREAL)
  Pset_WindowCommon | properties | on 1 object (1 IFCWINDOW)
    GlazingAreaFraction = 0.85 (IFCREAL)
    IsExternal = TRUE (IFCBOOLEAN)
    Reference = "1F 南面 抉った窓 西" (IFCLABEL)
    ThermalTransmittance = 2.1 (IFCREAL)
  Pset_WindowCommon | properties | on 1 object (1 IFCWINDOW)
    GlazingAreaFraction = 0.85 (IFCREAL)
    IsExternal = TRUE (IFCBOOLEAN)
    Reference = "1F 東面 地窓" (IFCLABEL)
    ThermalTransmittance = 2.1 (IFCREAL)
  Pset_WindowCommon | properties | on 1 object (1 IFCWINDOW)
    GlazingAreaFraction = 0.85 (IFCREAL)
    IsExternal = TRUE (IFCBOOLEAN)
    Reference = "2F 南面 抉った開口 (寝室から牧場)" (IFCLABEL)
    ThermalTransmittance = 2.1 (IFCREAL)
  Pset_WindowCommon | properties | on 1 object (1 IFCWINDOW)
    GlazingAreaFraction = 0.85 (IFCREAL)
    IsExternal = TRUE (IFCBOOLEAN)
    Reference = "3F 南面 開口 (空へ抜ける)" (IFCLABEL)
    ThermalTransmittance = 2.1 (IFCREAL)
  Pset_WindowCommon | properties | on 1 object (1 IFCWINDOW)
    GlazingAreaFraction = 0.85 (IFCREAL)
    IsExternal = TRUE (IFCBOOLEAN)
    Reference = "越屋根トップライト (吹抜上の採光 / clerestory)" (IFCLABEL)
    ThermalTransmittance = 2.1 (IFCREAL)
  Pset_ColumnCommon | properties | on 4 objects (4 IFCCOLUMN)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "RC 柱 □300" (IFCLABEL)
  Pset_ColumnCommon | properties | on 2 objects (2 IFCCOLUMN)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "RC 柱 □300 (2F)" (IFCLABEL)
  Pset_ColumnCommon | properties | on 1 object (1 IFCCOLUMN)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "RC 中央柱 □300" (IFCLABEL)
  Pset_ColumnCommon | properties | on 1 object (1 IFCCOLUMN)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "RC 中央柱 □300 (2F)" (IFCLABEL)
  Pset_SpaceCommon | properties | on 1 object (1 IFCSPACE)
    GrossPlannedArea = 20.00 (IFCAREAMEASURE) [SQUARE_METRE]
    IsExternal = FALSE (IFCBOOLEAN)
    PubliclyAccessible = FALSE (IFCBOOLEAN)
    Reference = "洞窟リビング吹抜 (3層を貫く大空洞 / cavernous void)" (IFCLABEL)
  Pset_SpaceCommon | properties | on 1 object (1 IFCSPACE)
    GrossPlannedArea = 7.80 (IFCAREAMEASURE) [SQUARE_METRE]
    IsExternal = FALSE (IFCBOOLEAN)
    PubliclyAccessible = FALSE (IFCBOOLEAN)
    Reference = "ロフト (洞窟最上の籠り / loft)" (IFCLABEL)
  Pset_SpaceCommon | properties | on 1 object (1 IFCSPACE)
    GrossPlannedArea = 1.44 (IFCAREAMEASURE) [SQUARE_METRE]
    IsExternal = FALSE (IFCBOOLEAN)
    PubliclyAccessible = FALSE (IFCBOOLEAN)
    Reference = "雨水タンク (外構)" (IFCLABEL)
  Pset_RoofCommon | properties | on 1 object (1 IFCROOF)
    IsExternal = TRUE (IFCBOOLEAN)
    ProjectedArea = 171.60 (IFCAREAMEASURE) [SQUARE_METRE]
    Reference = "RC 屋根 (台地に低く沈む)" (IFCLABEL)
  Pset_RoofCommon | properties | on 1 object (1 IFCROOF)
    IsExternal = TRUE (IFCBOOLEAN)
    ProjectedArea = 55.00 (IFCAREAMEASURE) [SQUARE_METRE]
    Reference = "太陽光パネル PV (屋上)" (IFCLABEL)
  Pset_RailingCommon | properties | on 1 object (1 IFCRAILING)
    IsExternal = FALSE (IFCBOOLEAN)
    Reference = "テラス ガラス手摺" (IFCLABEL)